Triple Digit Addition Worksheet – 2nd Grade Math Practice + Answer Key

The Triple Digit Addition Worksheet gives second grade students focused, no-prep practice with addition. It is a print-and-go math page that fits easily into a mini-lesson, a center rotation, or a quick review day.

Learning objective: Students will practice addition and apply the skill independently by completing each task on the page.

Why it works: Practice like this gives students a chance to try addition on their own after you teach it. Because the page is quick to complete and easy to review, it fits into almost any part of the school day.

What's included:

• 1 printable worksheet page

• Clear, student-friendly directions

• Answer key (1 page)

• Cover page

How it's organized: The page opens with these directions: "Add the three-digit numbers. Write each sum below the line." Students then complete the practice items in order and check their work before turning it in.

Grade level: Designed for second grade students. It also works well for first grade and third grade students who need extra practice or a fresh review.

How to use it: Use it for whole-group practice, small-group instruction, independent work, centers, morning work, homework, or an emergency sub plan.

Answer key: An answer key is included, so you can check work quickly or let students self-correct.

Teaching tips and variations:

• Model the first item together, then let students finish the rest independently.

• Pair students to compare answers and talk through any differences.

• Project the page and solve one or two items as a class before students work on their own.

Skills covered: Addition, Math

Standards: Supports Common Core 2. OA.B.2, 2. NBT.B.5.

File type: PDF, ready to print.

Number of pages: 3 (1 worksheet page, 1 answer key page, 1 cover page).

Looking for more addition practice? Visit the Have Fun Teaching shop for related worksheets, reading passages, and activities for second grade. Have Fun Teaching on Teach Simple